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Finding the Fourth Proportional to 33,015.50, 49,523.68 and 12,239

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Solution

The fourth proportional to 33,015.50, 49,523.68 and 12,239 is: 18,358.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,015.50 : 49,523.68 = 12,239 : x
  2. Step 2: Convert to fraction form
    33,015.50/49,523.68 = 12,239/x
  3. Step 3: Cross multiply
    33,015.50x = 49,523.68 × 12,239
  4. Step 4: Simplify right side
    33,015.50x = 606,120,319.52
  5. Step 5: Solve for x
    x = 606,120,319.52/33,015.50
  6. Step 6: Final answer
    x = 18,358.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.